dv9000 laptop turns on for 3 seconds, turns off, turns on - loop

[meldar9]

I've had a power on-off loop issue for a month or so. Approx 2.5yrs old laptop.  I have also noticed that the wrist rest area by the touchpad does get quite hot also. Strangely enough I happened across a post on a pc forum somewhere that he fixed his problem temporarily by putting the laptop in the fridge for 30 mins or so. After some research online it seems that the majority of the issue is simply that the heat sink is clogged with dust.  The laptop has to be virtually entirely dismantled to get to the heatsink area that's clogged. However it's only about 20 screws and a dozen or so pieces. The videos I've watched have the motherboard out in 10 min. So I 'm going to see if I can have it opened up and cleaned for less than $100.00. Putting it in the fridge for about 15 min has worked each time for me. 4 times over 2 1/2 month period.

[mld218]

I have a dv6-2190us that just started showing signs of this a few days ago. Happened 1 time earlier this week and again yesterday. I was able to get it to boot by holding the esc button until it started beeping and the config menu came up, I was then able to select boot up normally and it did.

[pbakers]

So my HP dv6000 laptop went belly up yesterday. While I was working on it the screen just went crazy, then it would no longer boot. It would just power up the LEDs for about 5 seconds with a black screen then reboot, over and over again. After reading this thread and doing some more research on the Web where people claim to have fixed their laptops using hair dryers, heat lamps, ovens, etc., I decided what the heck, I have nothing to lose.  I chose the oven and penny route as explained below.

1) Disassembled the laptop to the bare main board including the heat sink (many examples of this on the Web). I removed the CPU, all cables, labels, plastic insulation and anything else that might melt or burn.

2) I used some small metal standoffs I had laying around to allow the board to stand up off the cookie sheet I used. You could use some made of aluminum foil, but the board should not be touching the cookie sheet. The CPU side should be facing up.

3) I used aluminum foil the cover as many connectors along the edges of the board and the memory slots to protect them a little. I also used some aluminum foil to line the cookie sheet before placing the board on it, letting it hang over the edge of the cookie sheet to shield the board from direct heat from the heating coils in the bottom of my oven. Note - Do not use broil setting that uses the upper heating element.

4) Preheat the oven to 325F (163C).

5) Place the board on the cookie sheet into the oven and let the board preheat for 3 minutes.

6) Then step the oven temperature up to 415F (213C). When the temp reaches 410F (210C) start a timer for 2 minutes and 30 seconds.

7) At the end of this time turn the oven off and crack the oven door open a little to let the heat out. Do not remove the board or disturb it until it has cooled down enough to touch it. Taking it right out could cause a

thermal shock and do more damage. Total time was about 9 - 10 minutes from putting the board in the oven to turning it off.

😎 While the board was cooling down I cleaned up the heat sink (removing old thermal paste) and fan (boy was it dirty). When I took the heat sink off I noticed that it doesn’t come in direct contact with the GPU chip, they use some thermal foam to fill the gap but it didn’t even look like it was even compressed any. This is where the penny comes in, the size of my gap was perfect for a penny. I cleaned an old penny up (vinegar and salt then rub it with a baking soda paste). Use one prior to 1982 date on it as these have more copper in them. Then put some thermal paste on the GPU, then the penny and more thermal paste on top of that to contact the heat sink.

9) Reassemble the heat sink to the main board use more thermal paste on the CPU and some power inductors way out on the end (your laptop may be different).

10) Reassemble the rest of the laptop. Turned the power on and crossed my fingers. Sure enough it booted right up like nothing happened, everything seems to work. Just slap me silly!

Well I had another dv6000 that was my daughter’s and it was pretty sickly, no audio, DVD not working, one USB port out and would not wake up from sleep without taking the battery out. I thought I might as well try the above on it as well, again nothing to lose. Guess what? It now works like new, everything works on it again as well. Go figure….saved me some big bucks but it remains to be seen how long they last.

Also since this laptop was still somewhat working I ran Speccy on it to get the CPU and GPU temps. Before the fix they where high 50s C (CPU) and 65C (GPU). After the fix the CPU was now high 40s C and the GPU was also now around 50 – 55C. That’s quite a difference.

Anyway, if you have a laptop that is acting up (even if it is other things other than the black screen of death and boot problem), you might give this a try if you’re comfortable tearing down your laptop. Worked for me twice so I don’t think it was a fluke. Good luck and your mileage may vary (not responsible for melted laptops in ovens!).

[roman0165]

Installed new motherboard, I have the problem that when I press the power button with battery inside laptop, and power cord connected, I see the top panel lights blink for 2 seconds and turns off, press power again, turns off.

The cpu fan starts up then quits , fan starts quits after the power button pressed. I replaced the motherboard of this machine with a new one, the old one did the same.

Can it be a defective motherboard??

I removed all components one by one still doing it..example, memory, hard drive, wireless card, etc.

Please help! should I return the new motherboard from the web site I bought it?

[follower3000]

Any answers from HP?  My computer died a year ago with the same problem mentioned on this thread.  I heard that there is action suites going on ... anyone knows the details?   is there a compatible motherboard that can fit in that laptop HP Pavilion dv9000?

HP Stinks...

[Vchrzanowski]

Welcome to the Club!! I to am having the same problem with my computer, out of warrenty since July 2011, I have heard that they will make great door stops!!  Writing this on my new Lenovo !!!

[skyslicer]

This works on the HP dv9000 displaying same symptoms.  

When the power comes on, hit <ctrl>+<alt>+<delete>.  It then boots normally.  Seems to be running a bit warm, but that depends on load.  No idea if this will work on others, but the user tried it and it seems to work consistently. 

[Kathryn4567]

This is generally a feature that these laptops have built in due to overheating so they shut themselves down and dont reboot.

I have been to see a pc and laptop specialist as I have a HP DV9000 entertainment which has done the same thing. He said Due to the overheating the graphix chip needs to be re solderedonto the motherboard. This usually costs about £80 if your lucky and get someone who knows what they are doing. 

After having the re souldering done it could be likely that this fixes the problem but also could be likely to not work. It is based on luck really.

HP did recall these laptops back in 2006 which I was unaware and they did offer replacements but being unlucky I didnt know about this until now. 

My HP pavillion 9000 is in immaculate condition and im really upset this has happened. I think I will pay the £80 to see if my pc/laptop specialist will be able to cure the problem.

I hope this advice has helped you.

Best of luck

[1972]

Am havening the same problem with my HP laptop.

[wildeyedman]

Oh my God bro. This actually worked for me!!!! In my presario f769wm laptop the dvd drive went then my built-in cam, then my pointing device, then my audio..lol. Your solution worked and fixed everything! I have been looking for a solution for the past month and yours worked for me!!! You ARE the freaking man!!! Thank you so so much! Anybody having the "boot loop" problem. try this mans solution!